Detailed Product Description 1.Rear & Front System. 2.Front detection delay time: 8 second. 3.Three Color Mini LED Display. 4. ... Buzzer Type. 5.Dual CPU, 6 sensors system. 6.Obstacle orientation indication. 7.Operating ... .Ultrasonic frequency: 40KHz product name:car parking sensor system,P1168B,auto parts,car accesscories,led,car parking sensor, parking sensor,auto ...